Artificial stone



COATING R PLASTIC.

UNITED STATES PATENT OFFICE.

\VALLAOE LORD, OF PONTIAC, ILLINOIS.

ARTIFICIAL STONE.

SPECIFICATION forming part of Letters Patent No. 392,160, dated October 30, 1888 (Kc specimens.)

T0 aZZ whom it may concern.-

Be it known that 1, WALLAoE LORD, a citizen of the United States, residing at Pontiac, in the county of Livingston and State of Illinois, have invented certain new and useful Improvements in Artificial Stone; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 10 it appertains to make and use the same.

My invention consists in a composition for the manufacture of artificial stone, the constituents of which are mixed and combined in the manner hereinafter fully set forth.

In the manufacture of artificial stone I first prep'a 2 a solution composed of three pounds silicate of soda three ounds sal-ammoniao of limef 'fi. .iese in are disso ved in I tggpounds sul )hate-o iron and two pgu ny ls I gredieufs 2o tliirt Y gallons of Water and mixed thoroughly together, and the resulting solution forms the main feature of my invention.

To make my artificial stone, I combine from three to six )arts of sand with one part of MW cement or iaslzer-ollill'lS and dampen them I am aware thatsome of the ingredients herein named have been used heretofore for the manufacture of artificial stone; but I am not aware that all of the ingredients employed by me have ever before been used for that purpose.

I may also use coloring-matterin the manufacture of my artificial stone, by which means beautiful imitations of marble and other grained stones are produced, the cement being colored to produce the desired result.

As my artificial stone is notaifected by heat or frost or by the action of water, it is especially adapted for building purposes and for other uses where a hard, strong, and durable stone is desired.

\Vhat I claim, and desire to secure by Letters Patent, is-- 1. In a composition for the manufacture of artificial stone, the combinatiomwith sand and cement, ofa moistening solution consisting of silicate of soda, sal-ammoni ac, sulphate of iron, and lime, substantially as specified.

2. In a composition for the manufacture of artificial stone, a moist-oiling solution consisting of silicate of soda, sal-annnoniac, sulphate of iron, and lime, substantially as specified.

In testimony whereof I afiix my signature in presence of two witnesses W A LLACE LORD.

Witnesses:

JOHN T. Wnsox, .T. D. A. FRALEY. 

